Methods and systems for text detection in mixed-context...

Details Methods and systems for text detection in mixed-context... Methods and systems for text detection in mixed-context...

2006-05-09

2006-05-09

Patel, Kanjibhai (Department: 2625)

Image analysis

Pattern recognition

Feature extraction

C382S173000, C382S176000, C382S205000, C382S260000, C358S003130, C358S462000

Reexamination Certificate

active

07043080

ABSTRACT:
Embodiments of the present invention relate to methods and systems for detection and delineation of text characters in images which may contain combinations of text and graphical content. Embodiments of the present invention employ intensity contrast edge detection methods and intensity gradient direction determination methods in conjunction with analyses of intensity curve geometry to determine the presence of text and verify text edge identification. These methods may be used to identify text in mixed-content images, to determine text character edges and to achieve other image processing purposes.

REFERENCES:
patent: 4504972 (1985-03-01), Scherl et al.
patent: 5001576 (1991-03-01), Tanaka et al.
patent: 5081689 (1992-01-01), Meyer et al.
patent: 5202928 (1993-04-01), Tomita et al.
patent: 5245674 (1993-09-01), Cass et al.
patent: 5253307 (1993-10-01), Wayner et al.
patent: 5392365 (1995-02-01), Steinkrichner
patent: 5583659 (1996-12-01), Lee et al.
patent: 5583949 (1996-12-01), Smith et al.
patent: 5745596 (1998-04-01), Jefferson
patent: 5946420 (1999-08-01), Noh
patent: 6160913 (2000-12-01), Lee et al.
patent: 6227725 (2001-05-01), Ancin et al.
patent: 6408109 (2002-06-01), Silver et al.
patent: 6415053 (2002-07-01), Norimatsu
patent: 2001-052186 (2001-02-01), None
patent: 02-150979 (2002-05-01), None

Affiliated with

Also associated with

Rating

Methods and systems for text detection in mixed-context... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and systems for text detection in mixed-context..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and systems for text detection in mixed-context... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3599376